Document Detail

A multicenter study of preterm birth weight and gestational age-specific neonatal mortality.
MedLine Citation:
PMID:  8420354     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: This analysis was performed to present updated neonatal mortality data by age and birth weight for preterm newborns and to demonstrate the influence of plurality, ethnicity, and infant sex on mortality. STUDY DESIGN: Preterm birth weight and gestational age-specific mortality rates were compiled from the five centers that participated in the March of Dimes Multicenter Preterm Birth Prevention Project. In each center gestational age was assessed by standardized methods. A birth weight and gestational age-specific mortality chart for preterm births was created with live-birth data. RESULTS: In each birth weight group mortality decreased as the gestational age advanced; for each gestational age group heavier infants had less mortality. Female infants < 29 weeks survived better than male infants, and singletons < 29 weeks survived better than twins. Survival for black preterm newborns was better than that of whites but differences were not significant. Mortality for black term infants was significantly higher. The largest improvement in survival occurred between 25 and 26 weeks. At 30 weeks survival was > 90% and improved < 1% per week thereafter. CONCLUSIONS: When compared with rates in previous reports, mortality rates appear to have improved, especially at gestational ages < 29 weeks. These data may be useful in decision-making and in counseling patients at risk for preterm delivery.
R L Copper; R L Goldenberg; R K Creasy; M B DuBard; R O Davis; S S Entman; J D Iams; S P Cliver
Related Documents :
8843474 - Placental isoferritin in pregnancies with small-for-gestational age fetuses.
6613574 - Maternal regulation of fetal growth.
3260664 - Birth order and birth weight reexamined.
7396404 - Assessing birth weight-for-dates on a continuous scale.
18466414 - Social feedback to infants' babbling facilitates rapid phonological learning.
17188824 - Incidence and risk factors for cerebral palsy in infants with perinatal problems: a 15-...
Publication Detail:
Type:  Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of obstetrics and gynecology     Volume:  168     ISSN:  0002-9378     ISO Abbreviation:  Am. J. Obstet. Gynecol.     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-02-11     Completed Date:  1993-02-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370476     Medline TA:  Am J Obstet Gynecol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  78-84     Citation Subset:  AIM; IM    
Perinatal Epidemiology Unit, University of Alabama, Birmingham.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
African Americans
Birth Weight*
Gestational Age*
Infant Mortality*
Infant, Newborn
Infant, Premature*
Sex Factors
Survival Rate
Comment In:
Am J Obstet Gynecol. 1994 Mar;170(3):960-1   [PMID:  8141237 ]
Am J Obstet Gynecol. 1993 Nov;169(5):1360-1   [PMID:  8238209 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Expression of ras oncogene p21 protein in normal and neoplastic ovarian tissues: correlation with hi...
Next Document:  Increased thromboxane formation in diabetic pregnancy as a possible contributor to preeclampsia.